CHESTERFIELD COUNTY, Va. (WRIC) — The trial for the Richmond Police Officer who is accused of killing a Chesterfield teen is set to begin Tuesday morning.

David L. Cobb, was indicted for second-degree murder and use of a firearm in the commission of a felony in relation to the incident.

Investigators said that Cobb was off-duty when he fatally shot a teenager last October at a Chesterfield gas station.

During the morning hours of Oct. 17, 2015, Cobb, a 10-year veteran with RPD, was having a vehicle washed at the Sunoco gas station at 7559 Midlothian Turnpike.

A male, who was not employed by the gas station or car wash, entered the vehicle and drove it out of the wash bay.

Cobb, 47, approached the male, who was later identified as Paterson Brown of the 2000 block of Timbers Hill Road in Chesterfield, and told him to exit the vehicle, which led to a confrontation.

During the confrontation, Cobb shot Brown.

Brown was transported to Chippenham Hospital, where he later died.

Prosecutors have said Cobb pointed his gun at the teen for 3 or 4 minutes and that the teen offered no perceived threat.

When Cobb was in court for his arraignment, he appeared to shed tears.

“Simply put, this is an unfortunate and tragic situation for all involved,” Chief Durham said. “Officer Cobb is an outstanding police officer and has served the department and the community well. He worked well with youth on a daily basis in his assignment as a school resource officer.”

Video surveillance is expected to be introduced in court. The trial is set to begin Tuesday morning at 10 a.m.